From: Alexei Sheplyakov <varg@theor.jinr.ru>
Date: Mon, 25 Aug 2008 13:49:58 +0000 (+0400)
Subject: lexer: when switching to another output stream, clean last read character.
X-Git-Tag: release_1-5-0~63^2~17
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=581244b7b8fc9b5f81291e1a3f5731939e3f3d8e;ds=sidebyside

lexer: when switching to another output stream, clean last read character.

Otherwise we prepend to the current stream the last character read from
the previous stream, which is obviously incorrect.
---

diff --git a/ginac/parser/lexer.cpp b/ginac/parser/lexer.cpp
index ed1f894f..894a2ad8 100644
--- a/ginac/parser/lexer.cpp
+++ b/ginac/parser/lexer.cpp
@@ -126,6 +126,7 @@ void lexer::switch_input(std::istream* in)
 	input = in;
 	line_num = 0;
 	column = 0;
+	c = ' ';
 }
 
 } // namespace GiNaC